Santhosh K. - Software Generalist & DevOps Specialist

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Berlin, Germany

Experience

Aug 2024 - Present

1 year 1 month

Berlin, Germany

Freelance Software Engineer

Support Authorization as a Service initiative for enterprise-scale authorization platform
Incorporate comprehensive observability solutions into authorization infrastructure
Provision andmanage AWS infrastructure for authorization services
Mentor development team on AWS and Kubernetes best practices
Tech Stack: Java/Kotlin, Golang,Python, OPA, Spring Boot, AWS, Kubernetes, Terraform, ELK Stack, Prometheus, Grafana

Apr 2023 - Aug 2024

1 year 5 months

Berlin, Germany

Freelance Platform Engineer

Bootstrap platform components and enhance Infrastructure as Code implementations
Develop custom Kubernetes operators (Golang/Rust) for automated tenant resource provisioning
Lead migration initiatives toward GitOps methodologies
Tech Stack: Azure, Kubernetes, Terraform, Java/Kotlin, Golang, Rust, Elasticsearch, Kube Prometheus Stack, Grafana, Helm, ArgoCD

May 2022 - Apr 2023

1 year

Berlin, Germany

Freelance Software Engineer

Delivered full-stack features across frontend and backend systems
Mentored development team on GCP and Kubernetes best practices
Supported organizational migration to GitOps workflows
Tech Stack: Java/Kotlin, Spring, GCP, Kubernetes, Terraform, React/TypeScript, Kube Prometheus Stack, Grafana, FluxCD

Jul 2021 - Oct 2022

1 year 4 months

Berlin, Germany

Senior Devops Engineer

Facilitated datacenter-to-AWSmigration for legacy applications
Optimized Kubernetes infrastructure, monitoring, and end-to-end testing processes
Enhanced team capabilities through feature development support
Tech Stack: AWS, Kubernetes, Terraform, CDK, Golang, Ansible, Java, EFK Stack, Prometheus, Thanos, Grafana

Mar 2021 - Mar 2022

1 year 1 month

Berlin, Germany

Freelance Software Engineer

Developed new features using Kotlin and Scala within microservices architecture
Provided technical mentorship on AWS, Kubernetes, and Spring ecosystem
Contributed to cross-functional team development initiatives
Tech Stack: Java/Kotlin/Scala, Spring Boot, AWS, Kubernetes, TypeScript, React.js, Rust, Prometheus, Grafana

Jan 2021 - Mar 2021

3 months

Berlin, Germany

Freelance Software Engineer

Enhanced team capabilities through feature development and implementation
Implemented retry mechanism leveraging Kafka state store for improved reliability
Integrated Prometheus metrics across services with Istio service mesh
Tech Stack: Kotlin, Koin, Http4k, GCP, Kubernetes, Terraform, Istio, Prometheus, Grafana, Kafka Streams

Jun 2020 - Dec 2020

7 months

Berlin, Germany

Lead Engineer (Freelance)

Led platform expansion to new geographic markets
Architected and implemented AWS/Kubernetes infrastructure for regional rollout
Designed multi-tenancy solutions for core platform services
Integrated third-party services for stock management and marketing automation
Tech Stack: Java/Kotlin, Spring Boot, AWS, Kubernetes, Terraform+CFN,CDK, Golang, TypeScript, React.js(Next.js), Prometheus, Grafana, ELK Stack

Nov 2019 - Apr 2020

6 months

Berlin, Germany

Freelance Software Engineer

Architected and implemented core services in Kotlin
Migrated legacy applications to modern Kotlin-based architecture
Optimized frontend deployment pipeline using CloudFront and S3
Developed automation tools using Rust for PR management
Tech Stack: Java/Kotlin/Scala, Spring Boot, AWS, Kubernetes, TypeScript, React.js, Next.js, Rust, Prometheus, Grafana

Dec 2016 - Oct 2019

2 years 11 months

Berlin, Germany

Senior Software Engineer

Integrated multiple payment providers and payment method implementations
Led application migration from on-premises datacenter to AWS cloud
Modernized frontend stack from legacy JSP/Angular to TypeScript/React.js
Automated build pipeline migration from TeamCity to Jenkins using Rust tooling
Tech Stack: Java 11, Spring Boot, AWS SDK, Kinesis, TypeScript, React.js(Next.js), Docker, ELK Stack, Grafana, Prometheus, Cloudwatch

Feb 2015 - Nov 2016

1 year 10 months

Berlin, Germany

Senior Java Developer

Refactored legacy codebase and eliminated deprecated framework dependencies
Resolved critical 4-year-old memory leak through performance profiling and GC tuning
Contributed to Terraformmodule development for ProfitBricks Cloud platform
Established automated CI/CD pipeline using Jenkins
Tech Stack: Java 7/JEE, GlassFish, PostgreSQL, Dropwizard, Kubernetes (0.x), Terraform, Jenkins, GitLab CI

Jul 2005 - Jan 2015

9 years 7 months

Denmark

Lead/Senior Software Engineer

Delivered software solutions across multiple client projects and geographic locations
Implemented automation solutions and established development best practices
Provided technical leadership and emergency support for critical systems
Tech Stack: JVM ecosystem, ALSB 2.5, WebLogic 9.2, J2ME

Summary

Senior Full-Stack Developer and Platform Engineer with nearly two decades of expertise in Java, Kotlin, Scala, and cloud infrastructure (AWS, Azure, GCP). Specialized in Kubernetes orchestration, Infrastructure-as-Code, microservices architecture, and modern frontend development. Proven track record in platformmigrations, DevOps automation, and technical mentorship across fintech, e-commerce, and automotive industries.